﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp5
{
    class RefClass
    {
        public bool Judge(ref int num)
        {
            if (num % 4 == 0)
            {
                return true;
            }
            return false;
        }

        public int Add(ref int num1,ref int num2)
        {
            int add = num1 + num2;
            return add;
        }
    }
}
